Having a similar setup reduces the error during the MPCore stack setup. The stack setup is described on this wikipage: https://sourceforge.net/apps/mediawiki/tianocore/index.php?title=ArmPlatformPkg/Stack git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13058 6f19259b-4bc3-4df7-8a09-765794883524